Flat interlocking tile



FIG. 1 is a top perspective view of a flat interlocking tile embodying the new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a front view thereof. 

The ornamental design for a flat interlocking tile, as shown and described. 